<template>
  <div class="update-photo">
    <img class="img" :src="img" ref="img">
    <div class="toolbar">
      <div class="cancel" @click="$emit('close')">取消</div>
      <div class="confirm" @click="onConfirm">完成</div>
    </div>
  </div>
</template>

<script>
//裁剪图片的第三方库
import 'cropperjs/dist/cropper.css'
import Cropper from 'cropperjs'

import { updateUserPhoto } from '@/api/user'

export default {
  name: 'UpdatePhoto',
  components: {},
  props: {
    img: {
      type: [String, Object],
      required: true
    }
  },
  data() {
    return {
      cropper: {}
    }
  },
  computed: {},
  watch: {},
  created() {},
  mounted() {
    const image = this.$refs.img
    this.cropper = new Cropper(image, {
      viewMode: 1,
      dragMode: 'move',
      aspectRatio: 1,
      autoCropArea: 1,
      cropBoxMovable: false,
      cropBoxResizable: false,
      background: false,
      movable: true
    })
  },
  methods: {
    onConfirm() {
      this.cropper.getCroppedCanvas().toBlob(blob => {
        this.updateUserPhoto(blob)
      })
    },
    async updateUserPhoto(blob) {
      this.$toast.loading = {
        message: '保存中',
        forbidclick: true, //禁止背景点击
        duration: 0 //持续时间
      }
      try {
        //错误的用法
        // updateUserPhoto({
        //   photo:blob
        // })

        // 如果接口要求Content-Type 是application/json
        // 则传递普通javascript对象

        //  如果接口要求Content-Type 是multipart/form-data
        // 则必须传递FormData对象
        const formData = new FormData()
        formData.append('photo', blob)

        const { data } = await updateUserPhoto(formData)
        //  console.log(data);
        //关闭弹出层
        this.$emit('close')
        // 更新视图
        this.$emit('update-photo', data.data.photo)
        this.$toast.success('更新成功')
      } catch (error) {
        this.$toast.fail('更新失败')
      }
    }
  }
}
</script>

<style scoped lang="less">
.update-photo {
  background-color: #000;
  height: 100%;
  .toolbar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    justify-content: space-between;
    .cancel,
    .confirm {
      width: 90px;
      height: 90px;
      font-size: 30px;
      display: flex;
      justify-content: center;
      align-items: center;
      color: #fff;
    }
  }
}
.img {
  display: block;
  max-width: 100%;
}
</style>
